ABSTRACT
Makers of stone-chimes (qingshi 1 ) make various stone-chimes. 2 The vertex angle is one square ju 3 and a half, (that is to say, 135°). Use the width (of the shorter limb) as a base, then the shorter limb (gu 4 ) is twice as long, and the longer (striking) limb (gu 5 ) is three times as long. Divide the width of the shorter limb by three; use the entire width less third as the width of the longer (striking) limb. Divide the width of the longer (striking) limb by three, use this third as the thickness.
